Abstract:

This paper presents a bandwidth allocation and admission control scheme for IEEE 802.16 broadband wireless access systems in TDMA mode, using Nash Bargaining Solution (NBS). NBS provides bandwidth allocation among various flows from a cooperative point of view. Moreover, the way to generate the Pareto boundary is demonstrated. Hence, the Nash solution of the bargaining problem can be obtained easily. Based on the results of NBS, the utility of throughput is evaluated for the whole networks. Then, an admission control policy could be established to maintain the maximum system utility. Computer simulations have shown that under different number of connections and variable channel qualities, the bandwidth allocation algorithm can allocate bandwidth fairly and efficiently within different classes of service flows accordingly, and the admission control policy is adaptive to the variable channel qualities.

Key words:

IEEE 802.16